Increase in qtc interval, what does this indicate?

In brief:
Increased QTc

The QT interval represents the time it takes for the electricity to pass through the bottom two heart chambers.

Normally, the QT shortens with a faster heart rate; therefore, a corrected QT (QTc) is calculated, more accurately representing the expected QT. Normal QTc is

In brief:
Increased QTc

The QT interval represents the time it takes for the electricity to pass through the bottom two heart chambers.

Normally, the QT shortens with a faster heart rate; therefore, a corrected QT (QTc) is calculated, more accurately representing the expected QT. Normal QTc is
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